413 Area Code: Springfield, Massachusetts

Western Massachusetts is served by the 413 area code, with Springfield as its primary city. Springfield sits along the Connecticut River in the Pioneer Valley, on a stretch of the river that has long anchored a substantial industrial history — the Springfield Armory was the United States's principal military arsenal for nearly two centuries, and Smith & Wesson, Indian Motorcycle, and a long list of other manufacturers grew up around the city's nineteenth-century industrial base. The 413 footprint extends north through Northampton, Amherst (and the Five College region), Greenfield, and the Berkshires out to the New York line.

Records linked to 413 numbers in the directory often include other Massachusetts cities — Boston, Lowell, Quincy, and Worcester among them. None of those are inside the 413 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Massachusetts and addresses linked across multiple cities. The directory currently documents 366 distinct prefixes within 413 in detail, a working subset of the prefix population the code carries.

Springfield's home values come in below the US median, with median household income running well below the national figure. The city's median age sits a few years under the US reading, and population places Springfield as one of the larger cities in western New England — substantial enough to anchor a regional economy organized around healthcare, financial services (MassMutual is headquartered here), and the surrounding college towns. The 413 footprint as a whole reflects a mix of mid-sized cities, college towns, and the rural Berkshire counties.